/obj/item/tank/jetpack/oxygen : /obj/item/tank/jetpack{@OLD}

/obj/item/tank/jetpack/oxygen/harness : /obj/item/tank/jetpack/harness{@OLD}

/obj/item/tank/jetpack/oxygen/captain : /obj/item/tank/jetpack/captain{@OLD}

/obj/item/tank/jetpack/oxygen/security : /obj/item/tank/jetpack/security{@OLD}